Plate Motion

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Across
  1. 4. A long, deep indentation
  2. 6. The layer of soft, solid rock underneath Earth’s plates.
  3. 7. To examine in detail for a purpose.
  4. 8. Moving apart in different directions
  5. 9. The sudden shaking of Earth’s surface.
Down
  1. 1. One of the very large sections of hard, solid rock that make up Earth’s outer layer.
  2. 2. Something we observe to be similar over and over again.
  3. 3. How often or fast something happens.
  4. 5. Moving toward the same place.